linux-kernel - [PATCH] drm/vc4: Make use of the helper function devm_platform_ioremap

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Date:   Tue, 31 Aug 2021 21:59:03 +0800
From:   Cai Huoqing <caihuoqing@...du.com>
To:     <caihuoqing@...du.com>
CC:     Emma Anholt <emma@...olt.net>, Maxime Ripard <mripard@...nel.org>,
        "David Airlie" <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] drm/vc4: Make use of the helper function devm_platform_ioremap_resource()

Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately

Signed-off-by: Cai Huoqing <caihuoqing@...du.com>
---
 drivers/gpu/drm/vc4/vc4_drv.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index f6c16c5aee68..16abc3a3d601 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -50,13 +50,11 @@
 #define DRIVER_PATCHLEVEL 0
 
 /* Helper function for mapping the regs on a platform device. */
-void __iomem *vc4_ioremap_regs(struct platform_device *dev, int index)
+void __iomem *vc4_ioremap_regs(struct platform_device *pdev, int index)
 {
-	struct resource *res;
 	void __iomem *map;
 
-	res = platform_get_resource(dev, IORESOURCE_MEM, index);
-	map = devm_ioremap_resource(&dev->dev, res);
+	map = devm_platform_ioremap_resource(pdev, index);
 	if (IS_ERR(map))
 		return map;
 
-- 
2.25.1